Shaker Woods Farm--Solar Systems

"My fellow Americans, ask not what your country can do for you -- ask what can you do for your country." from President John F. Kennedy's 1961 Inaugural Address

On 15 May 2009, NH Public Radio recorded a spot on our solar panels for a series on "Alternative Energy."

On 29 February 2008, groSolar of White River Junction, VT, completed the installation of a 20 panel (3,600 watts) photovoltaic (PV) solar panel array on our tractor barn. See our monthly cost table below.

The array, as installed, is capable of producing an average of 348 kilowatt hours of electricity per month--approximately 43% of our average monthly electrical usage. If more power is produced that is being consumed, the excess power flows back through the meter into the Public Service of New Hampshire (PSNH) system, reducing our electrical bill through a process called "net metering."

On 18 March 2009, Minuteman Plumbing & Heating of Meredith, NH, installed a three panel thermal hot water system. The panels supply domestic hot water to a 135 gallon storage tank.

On 11 March 2009, groSolar completed the installation of a 24 panel (4,680 watts) photovoltaic (PV) solar panel array on our main roof.

The array, as installed, is capable of producing an average of 455 kilowatt hours of electricity per month

Monthly Cost Table: Combined Arrays

DATE	lbs. CO2 saved per month	PV KwH Produced per month	PSNH Net-meter Credit Balance	PSNH KwH Consumed per month	PSNH Cost per month	PSNH Cost/ KwH Delivered per month	Total KwH Consumed per month	% of KwH from PV Panels per month
System Specs:		803						99.6%
Avgs	1,304	767	734	136	$16.30	$0.182	728	115%
Jun 10	1,500	882	1,537	0	$10.19	$0.18	735	120%
May 10	1,973	1,161	1,334	0	$9.87	$0.18	573	203%
Apr 10	1,717	1,010	773	0	$9.87	$0.18	505	200%
Mar 10	1,346	792	224	0	$9.87	$0.18	530	139%
Feb 10	908	534	0	175	$36.37	$0.208	709	75%
Jan 10	591	347	0	453	$77.06	$0.174	800	43%
Dec 09	511	300	0	798	$9.87	$0.18	1,098	27%
Nov 09	584	344	807	138	$9.87	$0	482	71%
Oct 09	882	519	945	156	$9.87	$0	675	78%
Sep 09	1,601	942	1,101	0	$9.87	$0	791	133%
Aug 09	1,783	1,048	950	45	$9.87	$0	1,093	96%
July 09	1,550	917	995	0	$8.93	$0	804	114%
June 09	1,442	843	882	0	$8.93	$0	801	105%
May 09	1,592	939	840	0	$8.93	$0	610	153%
Apr 09	1,777	1,043	511	0	$8.93	$0	532	195%
Mar 09	973	572		0	$8.93	$0	539	106%
DATE	lbs. CO2 saved per month	PV KwH Produced per month	PSNH Net-meter Credit Balance	PSNH KwH Consumed per month	PSNH Cost per month	PSNH Cost/ KwH Delivered per month	Total KwH Consumed per month	% of KwH from PV Panels per month

Monthly Cost Table: Tractor Barn Arrays

DATE	lbs. CO2 saved per month	PV KwH Produced per month	PSNH KwH Consumed per month	PSNH Cost per month	PSNH Cost/ KwH Delivered per month	Total KwH Consumed per month	% of KwH from PV Panels per month
System Specs:		348					43%
Avgs	595	350	357	$61.10	$0.186	707	50.54%
Feb 09	446	263	320	$57.91	$0.181	583	45.07%
Jan 09	350	206	466	$80.26	$0.172	672	30.65%
Dec 08	153	90	615	$99.45	$0.162	705	12.77%
Nov 08	292	172	429	$71.59	$0.167	601	28.62%
Oct 08	527	310	441	$73.33	$0.166	751	41.28%
Sep 08	643	378	329	$56.99	$0.173	707	53.47%
Aug 08	781	465	337	$58.05	$0.172	502	57.97%
Jul 08	812	471	544	$88.21	$0.162	1015	46.24%
Jun 08	697	411	391	$65.92	$0.169	802	51.25%
May 08	881	521	51	$15.92	$0.312	572	91.08%
Apr 08	843	493	120	$25.37	$0.211	613	80.43%
Mar 08	568	334	205	$37.01	$0.180	539	61.96%
Feb 08	0	0	592	$90.01	$0.152	592	0.0%
Jan 08	0	0	722	$107.82	$0.152	722	0.0%
DATE	lbs. CO2 saved per month	PV KwH Produced per month	PSNH KwH Consumed per month	PSNH Cost per month	PSNH Cost/ KwH Delivered per month	Total KwH Consumed per month	% of KwH from PV Panels per month

This document initially developed by Jack Potter, 603-528-1990, info@shakerwoodsfarm.com.Shaker Woods Farm at Point Comfort